body{
    -moz-user-select:none; /*火狐*/
    -webkit-user-select:none; /*webkit浏览器*/
    -ms-user-select:none; /*IE10*/
    -khtml-user-select:none; /*早期浏览器*/
    user-select:none;
}
/*禁止长按图片保存*/
img {
   pointer-events: none;
}

/*禁止长按呼出菜单*/
* {
   -webkit-touch-callout: none;
}

input{
    outline: medium;
}
textarea{
    outline: medium;
}